http://www.gutenberg.org/ebooks/subject/13988.opds
2024-11-09T16:29:45Z
Books about Word problems (Mathematics) (sorted by popularity)
Free eBooks since 1971.
Project Gutenberg
https://www.gutenberg.org
webmaster@gutenberg.org
https://www.gutenberg.org/gutenberg/favicon.ico
25
1
2024-11-09T16:29:45Z
https://sendtokindle.compellingsciencefiction.com/ebooks/16527.opds
1001 задача для умственного счета (Russian)
Sergei Aleksandrovich Rachinskii